Steam and air coupling.



Patented Dec. 3|, I90l.

v J. BLATTNER.

STEAM AND AIR COUPLING.

(Application filed Apr. 11, 1901) (No Model.)

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UNTTED STATES PATENT FFICE.

JOSEPH BLATTNER, OF ALLEGHENY, PENNSYLVANIA.

STEAM AND AIR COUPLING.

ESPECIFIGATION forming part of Letters Patent No. 690,130, datedDecember 31, 1 901.

Application filed April 11, 1901. Serial No. 55,311. (No model.)

To to whom it may concern.-

Be it known that I, JOSEPH BLATTNER, a citizen of the United States,residing at Allegheny, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in Steamand Air Couplings, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to pipe-couplings, and has particular referenceto certain improvements in the couplings for steam and air pipes ofrailway-cars patented to me August 4, 1891, No. 457,246, and May 3,1892, No. 474,207.

The object of the invention is to provide interlocking coupling-heads ofsimple and improved construction and to provide means for automaticallyuncoupling the same when the cars separate.

The invention consists in the novel features ofconstruction andcombination and arrangement of parts hereinafter fully described andclaimed, and illustrated by the accompanying drawings, wherein- Figure 1is a side elevation of a coupling of the type shown in my Patent No.474,207 equipped with my improvement. Fig. 2 is a longitudinal sectionalview of the improved coupling. Fig. 3 is a detail elevation of one ofthe coupling-heads. Fig. 4 is an enlarged sectional view of one of thepipe-heads.

Referring to the drawings, 2 represents opposite rectangular pipe-frameswhich depend from the train-pipes 1. Instead of converging the crossconnecting air and steam pipes 3 into the double coupling-heads shown inmy Patent No. 474,207 said pipes 3 of the present improvement areextended independently of each other and each provided with a separateanddistinctcoupling. Assaidcouplings are identical both in constructionand operation the following description applies to either.

Each of pipes 3 is headed at 4 to bear in depression 5 of coupling-head6, with springwasher 7 behind head 4 in a depression in head 5, as in myPatent No. 457,246. The head 4 is recessed to receive rubber washer 8,which is confined therein at the center by the headed sleeve 0, threadedinto the extremity of pipe 3, while the outer edge of said washer isconfined by the ring 10, which embraces and is threaded onto head 4.

Projecting from the forward face of each of heads 6 is a lug 11, andwhen heads 6 are brought together these lugs extend beneath theoppositely-projecting arms 12 of the respective heads and hold thelatter in proper relation before and while being clamped together.

Pivoted at 13 to the inner side of each of arms 12 is a lever 14, whichis flat at its inner end at 15 to clamp against the wedgeshaped lug 16,projecting laterally from the adjacent head 6. Thus when the oppositelevers 14 are straightened out, asin Fig. 1, the coupling-heads areclamped tightly together, making a most secure and effective coupling.

The flat lever end 15 limits the movement of the lever and at the sametime locks the lever in clamping adjustment. Movement of the lever mayalso be limited by lugs 17, formed on the outer face thereof forengaging the extremity ofarm 12. The upper edges 14 of the levers arethinned or tapered, so that when turned upward for uncouplinglugs 16will readily pass the same when the coupling-heads move apart.

The levers 14 may be raised for uncoupling by any suitable means. Apreferred arrangement is shown in the drawings, wherein thecorresponding upper and lower levers are connected by chains 18, whilechains 19 connect the upper levers with the respective train-pipes 1.The coupling-frames being swiveled in manner shown in my former patents,frames 2 tend to straighten out horizontally, lifting cross-pipes 3 andthe couplings carried thereby. This separation or drawing apart oftrain-pipes 1 draws on chains 19 and lifts levers 14in unison, thuseffecting an uncoupling automatically. If desired, the operating-chainsmay extend to and be operated from the car-platforms.

The coupling-heads are very strong and of simple construction. Each headand arm 12 and lugs 11 and 16 is formed integral or of a single casting.While my improvements are shown and described in connection with a steamand air coupling, and particularly in conjunction with my priorimprovements,

v'er pivoted to the inner face of each of said arms and adapted to clampagainst said lugs, substantially as shown and described.

2. In a pipe-coupling, the combination of two heads adapted to becoupled together, a lug projecting laterally from the exterior of eachhead, each of said lugs being overlapped by an arm extendinglongitudinally from the adjacent head, a lever pivoted to the inner faceof each of said arms and adapted to clamp against said'lugs, and lugs 11projecting forward longitudinally from each of the heads and engagingthe under edges of each of said longitndinally-extending arms,substantially as shown and described.

3. In a pipe-coupling, the combination of pipe 3, recessed head 4 .atthe extremity thereof, washer 8 fitting the recess, headed sleeve9extending through and overlapping the center of the washer and threadedinto the end of pipe 3, and cap-ring 10 overlapping the outer edge ofthe washer and threaded onto the outer face of head 4, substantially asshown and described.

4. In a pipe-coupliug, the combination of pipe 3, head 4 recessed on itsouter face,washer' 8 within the head-recess, and ring-cap 10 overlappingthe outer edge of the washer and threaded onto the outer face of head 4,substantially as shown and described.

5. The combination of the interlocking coupling-heads, arms 12, lugs 16,levers 14 pivoted to arms 12 and adapted to clamp against lugs 16, andthe stop-lugs 17 on 1e-' vers 14 adapted to engage the extremities of.arms 12 and limit the movement of said levers, substantially as shownand described.

6. In a pipe-coupling, the combination of 50 heads 6 provided withlaterally-projecting flanges 16 and longitudinally-extending arms 12,and levers 14 pivoted to the inner sides of arms 12 and cooperating withlugs 16, the edges 14 of said levers being reduced or tapered so thatlugs 16 may readily clear said levers when the latter are turneduprightand when heads 6 are moving apart, substantially as shown anddescribed.

7. In a coupling of the character described, the combination ofpipe-frames 2, upper and lower cross connecting -pipes 3, couplingheadson adjacent pipes 3, vertically-swing ing levers 14 for securingtogether adjacent heads, chains 18, connecting corresponding upper andlower levers, and operating-chains 19 extending from the upper levers,substantially as shown and described.

In testimony whereof Iaffix my signature in presence of two witnesses.

J OSEPII BLATTN-ER.

Witnesses:

J. M. NEsBrr, MARGARET HUGHES.

